Red Blinks, Green 5 Pulses, Yellow Off (AUY, ABY & AWY) — Outdoor Unit Discharge Sensor Failure

What does OD Unit Disch Sensor Fail (AUY, ABY & AWY) mean?

The red LED blinks, the green LED shows 5 pulses, and the yellow LED is off. This indicates a failure of the outdoor unit's discharge temperature sensor.

• Disconnected or damaged discharge sensor.
• Faulty wiring leading to the sensor.
• Problem with the outdoor unit's control board.

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main electrical panel.

2. 2

   Wait 30 seconds for a system reset, then restore power.

3. 3

   If the error persists, the outdoor unit's internal components will need to be inspected by a qualified technician.

4. 4

   Do not attempt to open the outdoor unit yourself.